user getters in Game to access to the objects
change var name
remove an empty line
use Game in Coordinator instead of board
use Game in DisplacementCalculator instead of board
refactor CoordinatorTest
add dependency injection for ColorSwitcher into Coordinator
add dependency injection for DisplacementsCalculator into Coordinator
add dependency injection for EnPassantContext into Coordinator
use board instead of game in Coordinator
set the enPassantEligiblePawn and pawnPosition in the constructor of EnPassantCoordinator